Table 1.

Features of the trial’s StepAdd and placebo apps and additional features provided to the intervention group.

Features	StepAdd app	Placebo app
Display, record, and upload step count, BWa, and BPb	Yes	Yes
Reminders to measure BW and BP and to carry pedometer	Yes	Limited reminders to carry pedometer
Review of step count, BW, and BP	Yes	No
Exercise instructions	Yes	No
Goal setting	Yes	No
Coping strategies to overcome barriers to achieving step goals	Yes	No
Reminders about coping strategies	Yes	No
Display of recorded health data that were registered by physicians from the administrative screen	Yes	No
Daily reflection assistance	Yes	No
Weekly reflection assistance	Yes	No
Record about whether the tasks agreed with the health care professional are completed	Yes	No
Personalized feedback	Yes	No

^aBW: body weight.

^bBP: blood pressure.